EP1401220B1 - Mobilstation - Google Patents

Mobilstation Download PDF

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Publication number
EP1401220B1
EP1401220B1 EP03020595A EP03020595A EP1401220B1 EP 1401220 B1 EP1401220 B1 EP 1401220B1 EP 03020595 A EP03020595 A EP 03020595A EP 03020595 A EP03020595 A EP 03020595A EP 1401220 B1 EP1401220 B1 EP 1401220B1
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EP
European Patent Office
Prior art keywords
response signal
mobile station
response
network controller
radio network
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03020595A
Other languages
English (en)
French (fr)
Other versions
EP1401220A1 (de
Inventor
Sung Uk c/o NTT DoCoMo Inc Moon
Takehiro c/o NTT DoCoMo Inc Nakamura
Minami c/o NTT DoCoMo Inc ISHII
Shinji c/o NTT DoCoMo Inc Ueda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTT Docomo Inc
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NTT Docomo Inc
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Publication date
Application filed by NTT Docomo Inc filed Critical NTT Docomo Inc
Publication of EP1401220A1 publication Critical patent/EP1401220A1/de
Application granted granted Critical
Publication of EP1401220B1 publication Critical patent/EP1401220B1/de
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H04W8/183—Processing at user equipment or user record carrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services

Definitions

  • the present invention relates to a mobile station which supports multicast communication and a mobile communication system supporting multicast communication.
  • broadcast communication whereby a plurality of base stations 11 to 17 transmit common information to unspecified mobile stations 101 to 112 in predetermined areas is known in a conventional radio communication system.
  • multicast communication whereby a plurality of base stations 11 to 17 transmit common information to specific mobile stations joining in (belonging to) a specific group is known in a conventional radio communication system.
  • US 6,128,472 discloses a system and method for expanding high inbound message traffic in a two-way pager network.
  • the network includes a central base station which receives inbound messages from a plurality of subscriber units via a plurality of receiver base stations, and wherein a central base station controller is adapted for receiving only one inbound message from a subscriber during each inbound transmission time slot.
  • Inbound message capacity is expanded by providing a message management system between the receivers and the central base station controller. Subscribers are selectively grouped into a multicast group for simultaneously transmitting messages to the message management system, the simultaneously transmitted messages making up a multicast message group.
  • the message management system receives the multicast message group, directs exactly one selected message of the multicast message group to the central base station controller, and diverts the remaining messages to a multicast processor.
  • the present invention also provides a method performed by a mobile station as set out in Claim 3.
  • the present invention also provides a mobile communication system as set out in Claim 4.
  • An embodiment provides a mobile station which can reduce the load on a radio network controller during multicast communication.
  • FIG. 3 shows the entire configuration of a radio communication system according to an embodiment of the present invention.
  • the radio communication system comprises four base stations 10, 20, 30 and 40 under a radio network controller 50.
  • the base station 10 manages mobile stations 11 to 13, the base station 20 manages mobile stations 21 and 22, the base station 30 manages mobile stations 31 and 32, and the base station 40 manages mobile stations 41 to 43.
  • the mobile stations 11, 12, 21, 41, 42 and 43 join in the same multicast group A in the embodiment.
  • FIG. 4 shows a functional block diagram of the mobile station used in the radio communication system according to the embodiment. Functions of a plurality of mobile stations 11 to 43 are basically the same, so that the function of the mobile station 11 will be explained as follows.
  • the mobile station 11 is configured with a control signal receiver 11a, a response signal transmitter 11b, a response signal creator 11c and a holder 11d.
  • the mobile station 11 can support multicast communication.
  • the control signal receiver 11a is configured to receive a control signal for the multicast group A.
  • the control signal for the multicast group A is transmitted from the base station 10.
  • the response signal creator 11c is configured to create a response signal to the control signal for the multicast group A.
  • the holder 11d is configured to hold the created response signal for a predetermined duration; (for example, a random duration).
  • the holder 11d can determine the random duration based on a number generated by a random number generator, or use a preset duration as the random duration.
  • the holder 11d of the mobile station 11 can be configured to hold the response signals for 300ms
  • the holder 11d of the mobile station 12 can be configured to hold the response signals for 500ms
  • the holder 11d of the mobile station 21 can be configured to hold the response signals for 900ms
  • the holder 11d of the mobile station 41 can be configured to hold the response signals for 200ms
  • the holder 11d of the mobile station 42 can be configured to hold the response signals for 800ms
  • the holder 11d of the mobile station 43 can be configured to hold the response signals for 500ms.
  • the response signal transmitter 11b is configured to transmit the response signal to the base station 10 after holding the response signal for the predetermined duration.
  • FIG. 5 shows a functional block diagram of the base station used in the radio communication system according to the embodiment. Functions of a plurality of base stations 10 to 40 are basically the same, so that the function of the base station 10 will be explained as follows.
  • the base station 10 is configured with a control signal relay 10a and a response signal relay 10b.
  • the control signal relay 10a is configured to receive a control signal from the radio network controller 50, and transmit the control signal to the mobile stations 11 and 12 joining in a specific multicast group (for example, the multicast group A) under the base station 10.
  • the response signal relay 10b is configured to receive a response signal from the mobile stations 11 and 12 under the base station 10 , and transmit the response signal to the radio network controller 50 in accordance with a control signal for the multicast group A.
  • the response signal relay 10b can be configured to transfer a predetermined number of response signals (for example, a first response signal) to the radio network controller 50.
  • the predetermined number of response signals are transmitted from the mobile stations 11 and 12.
  • any response signal following the predetermined number of response signals (any following response signal) is retained by the response signal relay 10b.
  • the response signal relay 10b can dump, delete or return the following response signals.
  • the base stations can determine any number (for example, one, two and so on) as the predetermined number.
  • FIG. 6 shows a functional block diagram of the radio network controller 50 used in the radio communication system according to the embodiment.
  • the radio network controller 50 is configured with a control signal transmitter 51, a response signal receiver 52 and a response signal processor 53.
  • the base station 10 can support multicast communication.
  • the control signal transmitter 51 is configured to transmit the control signals for performing predetermined processing such as a service notice processing and an authentication processing to the base stations 10 to 40 in which the mobile stations 11 to 43 performing the predetermined processing exist.
  • the response signal receiver 52 is configured to receive the response signals transmitted from the mobile stations 11 to 43 via the base stations 10 to 40.
  • the response signal receiver 52 manages the number of response signals received from each mobile station.
  • the response signal processor 53 is configured to perform a predetermined processing (for example, transmission of service data) in accordance with the response signals received by the response signal receiver 52.
  • the response signal processor 53 can be configured to perform only the predetermined processing on a predetermined number of response signals (for example, a first response signal) to a control signal for a multicast group.
  • the predetermined number of response signals are transmitted from at least one first mobile station joining in the multicast group A.
  • Any response signal following the predetermined number of response signals can be unprocessed by the radio network controller 50.
  • the following response signals are transmitted from at least second mobile station joining in the multicast group A.
  • the radio network controller 50 performs a predetermined processing (for example, a service notice processing, or an authentication processing) on the mobile stations 11, 12, 21, 41, 42, 43 joining in the multicast group A in the radio communication system according to the embodiment will be described.
  • a predetermined processing for example, a service notice processing, or an authentication processing
  • the radio network controller 50 transmits a control signal such as a service notice signal and an authentication signal to three base stations 10, 20 and 40.
  • each of the base stations 10, 20 and 40 receives the control signal transmitted from the radio network controller 50.
  • the control signals transmitted by each of the base stations 10, 20 and 40 reach the mobile stations 11, 12, 21, 41, 42 and 43 joining in the multicast group A under the base stations 10, 20 and 40.
  • each of the mobile stations 11, 12, 21, 41, 42 and 43 creates a response signal to the control signal for the multicast group A, and holds the created response signal for a random duration.
  • each of the mobile stations 11, 12, 21, 41, 42 and 43 transmits the response signal to the base stations 10, 20 and 40 after holding the response signal for the random duration.
  • each of the base stations 10, 20 and 40 receives the response signal from each of the mobile stations 11, 12, 21, 41, 42 and 43, and transmits the received response signal to the radio network controller 50.
  • Each of the base stations 10, 20 and 40 may not transfer next signals following a first response signal or a predetermined number of response signals received from the mobile stations 11, 12, 21, 41, 42 and 43, to the radio network controller 50.
  • step 1006 the radio network controller 50 transmits a service data to the base stations 10, 20 and 40, in accordance with the response signals received from each of the mobile stations 11, 12, 21, 41, 42 and 43.
  • the radio network controller 50 can perform a predetermined processing on only a predetermined number of response signals (for example, a first response signal) transmitted from each of the mobile stations 11, 12, 21, 41, 42 and 43.
  • any response signal following the predetermined number of response signals is unprocessed by the radio network controller 50.
  • the following response signals are transmitted from the mobile stations 11, 12 , 21, 41, 42 and 43 joining in the multicast group A.
  • the radio network controller 50 can determine any number (for example, one, two and so on) as the predetermined number.
  • each of base stations 10, 20 and 40 transmits the received service data to each of the mobile stations 11, 12, 21, 41, 42 and 43.
  • the radio communication system can reduce the load on the radio network controller 50 caused by response signals which are transmitted from a plurality of mobile stations 11, 12, 21, 41 42 and 43, and which reach the radio network controller 50 at approximately the same time, when common information is transmitted to a plurality of mobile stations like multicast communication or broadcast communication.
  • An embodiment provides a base station, a mobile station and a radio network controller used in a radio communication system which can reduce the load on the radio network controller during the multicast communication.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Multimedia (AREA)
  • Mobile Radio Communication Systems (AREA)

Claims (5)

  1. Mobilstation (11), die Sammelsendungs-Kommunikation unterstützt, wobei die Mobilstation umfasst:
    eine Reaktionssignalerzeuger (11c), der dafür ausgelegt ist, ein Reaktionssignal auf ein Steuersignal für eine Sammelsendungs-Gruppe zu erzeugen;
    einen Reaktionssignalhalter (11d), der dafür ausgelegt ist, das Reaktionssignal für eine vorgegebene Dauer zu halten; und
    einen Reaktionssignalsender (11b), der dafür ausgelegt ist, das Reaktionssignal zu senden, nach Halten des Reaktionssignals über die vorgegebene Dauer.
  2. Mobilstation gemäß Anspruch 1, wobei der Reaktionssignalhalter (11d) dafür ausgelegt ist, eine Zufallszahl zu erzeugen, eine Zufallsdauer basierend auf der Zufallszahl festzulegen und das Reaktionssignal über die Zufallsdauer zu halten; und
    der Reaktionssignalsender (11b) dafür ausgelegt ist, das Reaktionssignal nach Halten des Reaktionssignals über die Zufallsdauer zu senden.
  3. Durch eine Mobilstation (11) durchgeführtes Verfahren zum Unterstützen von Sammelsendungs-Kommunikation, wobei das Verfahren umfasst:
    Empfangen eines Steuersignals für eine Sammelsendungs-Gruppe und Erzeugen eines Reaktionssignals (1003);
    Halten des Reaktionssignals über eine vorbestimmte Dauer (1003); und
    Senden des Reaktionssignals nach Halten des Reaktionssignals über die vorbestimmte Dauer (1004).
  4. Mobilkommunikationssystem, das eine Funknetzwerksteuerung (50), eine Basisstation (10) und eine Mobilstation (11) enthält und Sammelsendungs-Kommunikation unterstützt, wobei die Mobilstation (11) umfasst:
    einen Reaktionssignalerzeuger (llc), der dafür ausgelegt ist, ein Reaktionssignal zu einem Steuersignal für eine Sammelsendungs-Gruppe zu erzeugen;
    einen Reaktionssignalhalter (11d), der dafür ausgelegt ist, das Reaktionssignal über eine vorbestimmte Dauer zu halten; und
    einen Reaktionssignalsender (11b), der dafür ausgelegt ist, das Reaktionssignal, nach Halten des Reaktionssignals über die vorbestimmte Dauer, zu senden.
  5. Mobilkommunikationssystem gemäß Anspruch 4, wobei
    die Basisstation (10) umfasst
    einen Reaktionssignalverteiler (10b), der dafür ausgelegt ist, das aus der Mobilstation (11) gesendete Reaktionssignal an die Funknetzwerksteuerung (50) zu transferieren; und wobei
    die Reaktionssignalverteiler (10b) dafür ausgelegt ist, nur das Reaktionssignal zu transferieren, das zuerst aus der Mobilstation empfangen worden ist, oder eine vorgegebene Anzahl von Reaktionssignalen zur Funknetzwerksteuerung, und jegliches nachfolgende Reaktionssignal zurückzuhalten.
EP03020595A 2002-09-19 2003-09-18 Mobilstation Expired - Lifetime EP1401220B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2002274143 2002-09-19
JP2002274143 2002-09-19
JP2002321835A JP2004165712A (ja) 2002-09-19 2002-11-05 移動通信システム、基地局、移動局及び無線制御装置
JP2002321835 2002-11-05

Publications (2)

Publication Number Publication Date
EP1401220A1 EP1401220A1 (de) 2004-03-24
EP1401220B1 true EP1401220B1 (de) 2010-08-04

Family

ID=31949595

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03020595A Expired - Lifetime EP1401220B1 (de) 2002-09-19 2003-09-18 Mobilstation

Country Status (6)

Country Link
US (1) US7702339B2 (de)
EP (1) EP1401220B1 (de)
JP (1) JP2004165712A (de)
KR (1) KR100666580B1 (de)
CN (1) CN1248518C (de)
DE (1) DE60333617D1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8321542B1 (en) 2000-05-05 2012-11-27 Ipr Licensing, Inc. Wireless channel allocation in a base station processor
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US8051200B1 (en) * 2008-11-05 2011-11-01 Sprint Communications Company L.P. Forming multi-user packet based groups using response behavior
EP2898662A4 (de) 2012-09-20 2016-05-25 Nec Corp Ladesteuerungsverfahren und -system in einem kommunikationsnetzwerk

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Also Published As

Publication number Publication date
CN1496155A (zh) 2004-05-12
EP1401220A1 (de) 2004-03-24
US20040058666A1 (en) 2004-03-25
DE60333617D1 (de) 2010-09-16
CN1248518C (zh) 2006-03-29
KR20040025633A (ko) 2004-03-24
KR100666580B1 (ko) 2007-01-09
US7702339B2 (en) 2010-04-20
JP2004165712A (ja) 2004-06-10

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